Rosularia turkestanica

Rosularia turkestanica in bloom on sunny screes of Turkestan
Rosularia turkestanica

Succulent perennial of the Crassulaceae family, native to Central Asia, mainly Turkestan, Kyrgyzstan, and the surrounding mountainous regions. It grows on rockeries, screes, and sunny rock faces, on very well-drained mineral substrates.

It is one of the most architectural rosularias of the genus. It forms dense and regular domes, composed of numerous small tight rosettes with fleshy, oval, glaucous green to medium green leaves, slightly pruinose, arranged with remarkable geometric precision. The progressive multiplication of rosettes by short stolons results in very compact hemispherical cushions, which can reach several tens of centimeters in diameter while remaining close to the ground, generally between 5 and 10 cm in height outside of flowering. The perfectly structured dome shape is the most striking feature of the species.

The flowers, borne on short erect stems, are described as creamy white to slightly pinkish, grouped in small clusters. In its natural habitat, flowering probably extends from June to July. In cultivation under glass or in a cold greenhouse, it generally occurs in summer.

It requires absolute drainage, a very poor mineral substrate, and rigorous protection against winter moisture. It is frequently cultivated in pots or alpine troughs.